Classifying triangles, step by step
A triangle can be named two different ways, and the standard asks for both.
The question
equilateralisoscelesscalene
Is this triangle equilateral, isosceles, or scalene?
Name this triangle
sides:20 cm20 cm20 cm
sides:20 cm20 cm20 cm
sides:20 cm20 cm20 cm
equilateral
- Every triangle has TWO names — one for its angles and one for its sides — and it has both at once. This question is asking for the SIDE name, so look only at the side lengths.
- Count how many are the SAME, not how long they are: all three match.
- All three equal is EQUILATERAL.
How it works.
- 01
Every triangle has TWO names — one for its angles and one for its sides — and it has both at once. This question is asking for the SIDE name, so look only at the side lengths.
- 02
Count how many are the SAME, not how long they are: all three match.
- 03
All three equal is EQUILATERAL.